Now, finally, the MAGs have taken the leap from the silver screen into the real world. The self-lacing feature depicted in the 1989 movie is gone, but the MAG will get the movie version's LED-electroluminescent glowing Nike logos.

Most sneaker-heads, however, will never be able to get their hands on a pair.

Nike has produced a limited run of 1,500 pairs of the MAG. Each will be auctioned on EBay at nikemag.eBay.com, and all of the "net proceeds" will go to the Michael J. Fox Foundation to help fight Parkinson's disease, according to Nike. Fox was diagnosed with Parkinson's in 1991.

The auction kicks off at tonight at 8:30 p.m. and will end Sept. 18, with 150 pairs sold through EBay each day.

But the tech-related fundraising around the shoe doesn't end there.

Google co-founder Sergey Brin and his wife Anne Wojciki, who co-founded the DNA-testing company 23andMe, have agreed to match all donations to the Michael J. Fox Foundation -- up to $50 million -- through the end of 2012, according to the blog Nice Kicks.

Michael J. Fox is also set to appear on "Late Show with David Letterman" tonight to talk about the release of the Nike MAG and the fundraising for his foundation, Nice Kicks said.

In the film "Back to the Future Part II," Fox wears the shoes when his character, Marty McFly, travels to the year 2015. Hopefully we'll see a general release of the Nike MAG in four years, at lower prices than the EBay auction will conjure up.

What do you think about the Nike MAG and the fundraising? For sneaker geeks and lovers of the Back to the Future trilogy, does the shoe live up to the hype? Should Mattel follow Nike and produce Marty McFly's "Back to the Future Part II" hover board? Sound off in the comments.